We're looking into the smeared bolt issue. I tried printing this out with both the DWF Viewer and also with DWF Composer. I was able to reproduce the smeared bolt problem with the DWF Viewer but somehow was able to get it to print correctly with DWF Composer.
Our guys will continue to look into this one. I believe someone was supposed to contact you.
Doug Look, Product Manager
Autodesk, Inc.